Lütken, C.F. (1887)
Korte Bidrag til nordisk Ichthyographi. VI. En for Grønlandshavet ny Rokke-art (Raja Fyllae n. sp. ad int.) m. m. Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1887, 1–4

Jordan, D.S. & Evermann, B.W. (1896)
The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part I. Bulletin of the United States National Museum, 47, 1–1240

Lütken, C.F. (1898)
The ichthyological results. Danish Ingolf Expedition, 2(1), 1–39

Jungersen, H.F.E. (1899)
On the appendices genitales in the Greenland shark, Somniosus microcephalics (Bl. Schn.), and other selachians. The Danish Ingolf–Expedition, 2(2): 84pp

Dollo, L. (1904)
Résultats du voyage du S. Y. Belgica. Expédition Antarctique Belge. Zoologie. Poissons. 1–240, Pls. 1–12

Collett, R. (1905)
Meddelelser om Norges Fiske i Aarene 1884–1901 (3die Hoved-Supplement til "Norges Fiske", III Slutning). Forhandlinger i Videnskabs–selskabet i Christiania, 1903, 7, 1–173

Jensen, A.S. (1905)
Raja fyllae i Skagerak. Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1905, 227–238

Garman, S. (1913)
The Plagiostomia (Sharks, Skates and Rays). Memoirs of the Museum of Comparative Zoology at Harvard College, 36, 1–528

Jensen, A.S. (1914)
The selachians of Greenland. Mindeskrift for Japetus Steenstrup, København, 1–40

Clark, R.S. (1922)
Rays and skates (Raiae) No. 1. Egg capsules and young. Journal of the Marine Biological Association of the United Kingdom, 12(4), 577–643
DOI: 10.1017/S002531540000967X

Clark, R.S. (1926)
Rays and skates. A revision of the European species. Fishery Board for Scotland. Scientific Investigations, 1926(1), 1–66

Koefoed, E. (1927)
Fishes from the sea-bottom. Scientific Results of the Michael Sars North Atlantic Deep–Sea Expedition 1910, 4(1), 1–148

Jordan, D.S. & Evermann, B.W. & Clark, H.W. (1930)
Check list of the fishes and fishlike vertebrates of North and Middle America north of the northern boundary of Venezuela and Colombia. Report of the United States Fish Commission, 1928(2), 1–670

Fowler, H.W. (1936)
The marine fishes of West Africa: based on the collection of the American Museum Congo Expedition, 1909-1915 (Part I). Bulletin of the American Museum of Natural History, 70, 1–605

Bigelow, H.B. & Schroeder, W.C. (1953)
Sharks, sawfishes, guitarfishes, skates and rays. Chimaeroids. In J. Tee–Van, C.M. Breder, S.F. Hildebrand, A.E. Parr, and W.C. Schroeder (Eds.), Fishes of the Western North Atlantic. Part 2. Sears Foundation for Marine Research, Yale University, New Haven (pp. 1–514)

Bigelow, H.B. & Schroeder, W.C. (1954)
Deep water elasmobranchs and chimaeroids from the northwestern Atlantic slope. Bulletin of the Museum of Comparative Zoology at Harvard College, 112(2), 38–87

Schroeder, W.C. (1955)
Report on the results of exploratory otter trawling along the continental shelf and slope between Nova Scotia and Virginia during the summers of 1952 and 1953. Papers in Marine Biology and Oceanography, Deep Sea Research, 3(suppl.), 358–372

Grey, M. (1956)
The distribution of fishes found below a depth of 2000 m. Fieldiana Zoology, 36(2), 73–337

Stehmann, M. (1970)
Vergleichend morphologische und anatomische Untersuchungen zur Neuordnung der Systematik der nordostatlantischen Rajidae (Chondrichthyes, Batoidei). Archiv für Fischereiwissenschaft, 21(2), 73–164

Williams, H.H. & Heddwyn, R.D.H. (1978)
Proleptus mackenziei sp.n. (Nematoda, Spirurida) from Raja fyllae in the Barents Sea. Zoologica Scripta, 7(2), 85–91
DOI: 10.1111/j.1463-6409.1978.tb00591.x

Lacourt, A.W. (1979)
Eikapsels van de kraakbeenvissen, roggen, haaien, draakvissen (Chondrichthyes) van Noord- en West-Europa. Koninklijke Nederlandse Natuurhistorische Vereniging, 135, 1–27

Stehmann, M. & Bürkel, D.L. (1984)
General remarks, explanation of terms and mode of presentation for Hypotremata, Pristidae, Torpedinidae, Rajidae, Chimaeridae, Rhinochimaeridae In Whitehead, P.J.P., Bauchot, M.–L., Hureau, J.C., Nielsen, J. & E. Tortonese (Eds.), Fishes of the North–Eastern Atlantic and the Mediterranean. Vol. 1. (pp. 151–155, 159–196, 212–218). Unesco, Paris

Raschi, W. (1986)
A morphological analysis of the ampullae of Lorenzini in selected skates (Pisces, Rajoidei). Journal of Morphology, 189(3), 225–247
DOI: 10.1002/jmor.1051890303

Fricke, R. (1987)
Deutsche Meeresfische. Bestimmungsbuch. Hamburg(DJN), 1987. 222 pp.

McEachran, J.D. & Miyake, T. (1987)
A new species of skate of the genus Breviraja from off Nova Scotia, with comments on the status of Breviraja and Neoraja (Chondrichthys, Rajoidei). Copeia, 1987(2), 409–417

Paepke, H.-J. & Schmidt, K. (1988)
Kritischer Katalog der Typen der Fischsammlung des Zoologischen Museums Berlin. Teil 2: Agnatha, Chondrichthyes. Mitteilungen aus dem Zoologischen Museum in Berlin, 64(1), 155–189
DOI: 10.1002/mmnz.19880640108

Bor, P.H.F. (1989)
Het Eikapsel van Raja (Rajella) fyllae Lüttken, 1888: nieuw voor de Nederlandse Kust. Het Zeepaard, 49(2), 40–42

Gordon, J.D.M. & Duncan, J.A.R. (1989)
A Note on The Distribution and Diet of Deep-Water Rays (Rajidae) in An Area of The Rockall Trough. Journal of the Marine Biological Association of the United Kingdom, 69(3), 655–658
DOI: 10.1017/S0025315400031040

Berestovskiy, E.G. (1990)
Feeding in the skates, Raja radiata and Raja fyllae, in the Barents and Norwegian seas. Journal of Ichthyology, 29(8), 88–96

Bergstad, O.A. (1990)
Ecology of the fishes of the Norwegian Deep: Distribution and species assemblages. Netherlands Journal of Sea Research, 25(1–2), 237–266
DOI: 10.1016/0077-7579(90)90025-C

Herman, J. & Hovestadt-Euler, M. & Hovestadt, D.C. & Stehmann, M. (1995)
Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supraspecific taxa of chondrichthyan fishes. Part B: Batomorphii No. 1b: Order: Rajoidei - Family: Rajidae Genera and Subgenera: Bathyraja (with a deep-water, shallow-water and transitional morphotype) Psammobatis, Raja (Amblyraja), Raja (Dipturus), Raja (Leucoraja), Raja (Raja), Raja (Rajella) (with two morphotypes), Raja (Rioraja), Raja (Rostroraja), Raja lintea and Sympterygia. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie, 65, 237–307

Okamura, O. & Amaoka, K. & Takeda, M. & Yano, K. & Okada, K. & Chikuni, S. (1995)
Fishes collected by the R/V Shinkai Maru around Greenland. Japan Marine Fishery Resources Research Center, 304pp

Deynat, P.P. & Séret, B. (1996)
Le revêtement cutané des raies (Chondrichthyes, Elasmobranchii, Batoidea). I- Morphologie et arrangement des denticules cutanés. Annales des Sciences Naturelles – Zoologie et Biologie Animale, 17(2), 65–83

McEachran, J.D. & Konstantinou, H. (1996)
Survey of the variation of alar and malar thorns in skates: phylogenetic implications (Chondrichthyes: Rajoidei). Journal of Morphology, 228(2), 165–178
DOI: 10.1002/(SICI)1097-4687(199605)228:2<165::AID-JMOR5>3.0.CO;2-4

Mould, B. (1997)
Classification of the recent Elasmobranchii. Copyright Brian Mould 1997

Mould, B. (1997)
Classification of the recent Elasmobranchii. Copyright Brian Mould 1997

Bor, P.H.F. (1998)
Eikapsels van haaien en roggen. Wetenschappelijke Mededelingen Koninklijke Nederlandse Natuurhistorische Vereniging, 223: 44pp

Deynat, P.P. (1998)
Le revêtement cutané des raies (Chondrichthyes, Elasmobranchii, Batoidea). II. Morphologie et arrangement des tubercules cutanés. Annales des Sciences Naturelles – Zoologie et Biologie Animale, 19(3–4), 155–172
DOI: 10.1016/S0003-4339(99)80004-5

Scott, W.B. & Scott, M.G. (1998)
Atlantic fishes of Canada. Canadian Bulletin of Fisheries and Aquatic Sciences No. 219. University of Toronto Press. i–xxx + 1–730

Bergstad, O.A. & Bjelland, O. & Gordon, J.D.M. (1999)
Fish communities on the slope of the eastern Norwegian Sea. Sarsia, 84, 67–78
DOI: 10.1080/00364827.1999.10420452

Fricke, R. (1999)
Annotated checklist of the marine and estuarine fishes of Germany, with remarks on their taxonomic identity. Stuttgarter Beiträge zur Naturkunde, Serie A, 587, 1–67

Dolgov, A.V. (2000)
New data on composition and distribution of the Barents Sea ichthyofauna. ICES CM Documents 2000, Mini12, 13pp

Skjaeraasen, J.E. & Bergstad, O.A. (2001)
Notes on the distribution and length composition of Raja lintea, R. fyllae, R. hyperborea and Bathyraja spinicauda (Pisces: Rajidae) in the deep northeastern North Sea and on the slope of the eastern Norwegian Sea. ICES Journal of Marine Science, 58, 21–28
DOI: 10.1006/jmsc.2000.0985

Magnussen, E. (2002)
Demersal fish assemblages of Faroe Bank: species composition, distribution, biomass spectrum and diversity. Marine Ecology Progress Series, 238, 211–225
DOI: 10.3354/meps238211

Moore, J.A. & Hartel, K.E. & Craddock, J.E. & Galbraith, J.K. (2003)
An annotated list of deepwater fishes from off the New England region, with new area records. Northeastern Naturalist, 10(2), 159–248

Moore, J.A. & Hartel, K.E. & Craddock, J.E. & Galbraith, J.K. (2003)
An annotated list of deepwater fishes from off the New England region, with new area records. Northeastern Naturalist, 10(2), 159–248

Compagno, L.J.V. (2005)
Checklist of living Chondrichthyes. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 503–548). Science Publishers, Endfield, USA

Compagno, L.J.V. (2005)
Checklist of living Chondrichthyes. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 503–548). Science Publishers, Endfield, USA

Dolgov, A.V. (2005)
Feeding and food consumption by the Barents Sea skates. Journal of Northwest Atlantic Fishery Science, 35, 495–503
DOI: 10.2960/J.v35.m524

Dolgov, A.V. & Drevetnyak, K.V. & Gusev, E.V. (2005)
The Status of Skate Stocks in the Barents Sea. Journal of Northwest Atlantic Fishery Science, 35, 249–260
DOI: 10.2960/J.v35.m522

Dolgov, A.V. & Grekov, A.A. & Shestopal, I.P. & Sokolov, K.M. (2005)
By-catch of Skates in Trawl and Long-Line Fisheries in the Barents Sea. Journal of Northwest Atlantic Fishery Science, 35, 357–366
DOI: 10.2960/J.v35.m523

Drevetnyak, K.V. & Dolgov, A.V. & Sokolov, K.M. & Gusev, E.V. & Grekov, A.A. (2005)
Skates in the Barents Sea: stock status and catch by fishing fleet. ICES CM Documents 2005, 11, 1–13

Valsecchi, E. & Pasolini, P. & Bertozzi, M. & Garoia, F. & Ungaro, N. & Vacchi, M. & Sabelli, B. & Tinti, F. (2005)
Rapid Miocene-Pliocene dispersal and evolution of Mediterranean rajid fauna as inferred by mitochondrial gene variation. Journal of Evolutionary Biology, 18(2), 436–446
DOI: 10.1111/j.1420-9101.2004.00829.x

George, M.R. & Zidowitz, H. (2006)
Checkliste der europäischen Knorpelfischarten mit wissenschaftlichen und deutschen Namen. Zeitschrift für Fischkunde, 8(1/2), 71–81

Dolgov, A.V. (2007)
Trophic structure of the Barents Sea fish community with the special reference to the cod stock recovery ability. ICES CM Documents 2007, D8, 17 pp.

Ebert, D.A. & Bizzarro, J.J. (2007)
Standardized diet compositions and trophic levels of skates (Chondrichthyes: Rajiformes: Rajoidei). Environmental Biology of Fishes, 80(2–3), 221–237
DOI: 10.1007/s10641-007-9227-4

Kyne, P.M. & Simpfendorfer, C.A. (2007)
A Collation and summarization of available data on deepwater Chondrichthyans: Biodiversity, life history and fisheries. Biodiversity, Life History and Fisheries IUCN SSC Shark Specialist Group for the Marine Conservation Biology Institute, 1–137.

Kyne, P.M. & Simpfendorfer, C.A. (2007)
A Collation and summarization of available data on deepwater Chondrichthyans: Biodiversity, life history and fisheries. Biodiversity, Life History and Fisheries IUCN SSC Shark Specialist Group for the Marine Conservation Biology Institute, 1–137.

Zidowitz, H. & George, M.R. & Fordham, S. & Kullander, S. & Pelczarski, W. (2008)
Sharks in the Baltic. Distribution, use and conservation of cartilaginous fishes in the Baltic Sea. Shark Alliance: 1–27

Dolgov, A.V. (2009)
Trophic structure of the Barents Sea fish assemblage with special reference to the cod stock recoverability. Progress in Oceanography, 81(1–4), 165–173
DOI: 10.1016/j.pocean.2009.04.009

George, M.R. (2009)
An annotated checklist of North Sea cartilaginous fish species. Journal of Applied Ichthyology, 25(S1), 33–39
DOI: 10.1111/j.1439-0426.2009.01303.x

Kulka, D.W. & Barker, A.S. & Orlov, A.M. & Pasolini, P. (2009)
Rajella fyllae IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org

Sulak, K.J. & Macwhirter, P.D. & Luke, K.E. & Norem, A.D. & Miller, J.M. & Cooper, J.A. & Harris, L.E. (2009)
Identification guide to skates (Family Rajidae) of the Canadian Atlantic and adjacent regions. Canadian Technical Report of Fisheries and Aquatic Sciences, 2850, 1–34

Drevetnyak, K.V. & Prozorkevich, D.V. & Dolgov, A.V. & Murashko, P.A. (2010)
The Barents Sea skates: using the fishery-independent surveys for estimation of long-term trends in relative abundance and possible considerations to reduce their bycatch. ICES CM Documents 2010, E03, 1-16

Møller, P.R. & Nielsen, J.G. & Knudsen, S.W. & Poulsen, J.Y. & Sünksen, K. & Jørgensen, O.A. (2010)
A checklist of the fish fauna of Greenland waters. Zootaxa, 2378, 1–84

Séret, B. (2010)
Guide des requins, des raies et des chimères des pêches françaises. Direction de la Pêche Maritime et de L'aquaculture, 154 pp

Séret, B. & Fenchel, T. & Uiblein, F. (2010)
European Research Focus on Sharks and Rays. Marine Biology Research, 6, 339–340
DOI: 10.1080/17451001003657729

Claeson, K.M. (2011)
The synarcual cartilage of batoids with emphasis on the synarcual of Rajidae. Journal of Morphology, 272(12), 1444–1463
DOI: 10.1002/jmor.10996

Coulson, M.W. & Denti, D. & Van Guelpen, L. & Miri, C. & Kenchington, E. & Bentzen, P. (2011)
DNA barcoding of Canada's skates. Molecular Ecology Resources, 11(6), 968–978
DOI: 10.1111/j.1755-0998.2011.03034.x

Dolgov, A.V. (2011)
Atlas of the Barents Sea fish. PINRO Press, 2011, Murmansk, 188 pp

Wienerroither, R.M & Johannesen, E. & Dolgov, A.V. & Byrkjedal, I. & Bjelland, O. & Drevetnyak, K. & Eriksen, K.B. & Høines, Å. & Langhelle, G. & Langøy, H. & Prokhorova, T. & Prozorkevich, D. & Wenneck, T. (2011)
Atlas of the Barents Sea Fishes. IMR/PINRO Joint Report Series 1–2011. 272 pp.

Aschliman, N.C. & Nishida, M. & Miya, M. & Inoue, J.G. & Rosana, K.M. & Naylor, G.J.P. (2012)
Body plan convergence in the evolution of skates and rays (Chondrichthyes: Batoidea). Molecular Phylogenetics and Evolution, 63(1), 28–42
DOI: 10.1016/j.ympev.2011.12.012

Kyne, P.M. & Carlson, J.K. & Ebert, D.A. & Fordham, S.V. & Bizzarro, J.J. & Graham, R.T. & Kulka, D.W. & Tewes, E.E. & Harrison, L.R. & Dulvy, N.K. (2012)
The Conservation Status of North American, Central American, and Caribbean Chondrichthyans. IUCN Species Survival Commission Shark Specialist Group, Vancouver, Canada.

Naylor, G.J.P. & Caira, J.N. & Jensen, K. & Rosana, K.A.M. & White, W.T. & Last, P.R. (2012)
A DNA sequence based approach to the identification of shark and ray species and its implications for global elasmobranch diversity and parasitology. Bulletin of the American Museum of Natural History, 367, 1–262

Ebert, D.A. & Stehmann, M. (2013)
Sharks, batoids, and chimaeras of the North Atlantic. FAO Species Catalogue for Fishery Purposes, 7. Rome, FAO: 523 pp.

Iglésias, S.P. (2013)
Handbook of the marine fishes of Europe and adjacent waters (A natural classification based on collection specimens, with DNA barcodes and standardized photographs), Volume I (Chondrichthyans and Cyclostomata). Provisional version 08, 01.04.2014. 105 p. http://www.mnhn.fr/iccanam

Iglésias, S.P. (2013)
Chondrichthyans and Cyclostomata from the North-eastern Atlantic and the Mediterranean (A natural classification based on collection specimens, with DNA barcodes and standardized photographs), (plates & text), Provisional version 07, 01 April 2013. 105p. http://www.mnhn.fr/iccanam

Chiquillo, K.L. & Ebert, D.A. & Slager, C.J. & Crow, K.D. (2014)
The secret of the mermaid’s purse: Phylogenetic affinities within the Rajidae and the evolution of a novel reproductive strategy in skates. Molecular Phylogenetics and Evolution, 75, 245–251
DOI: 10.1016/j.ympev.2014.01.012

Gmelig Meyling, A.W. & Cadée, M.C. (2014)
Herkennen van eikapsels van haaien en roggen: een concept-tabel voor determinatie. Zoekbeeld, 4(1), 17–20

Kutti, T. & Bergstad, O. & Aksel, F.J.H. & Helle, K. (2014)
Cold-water coral mounds and sponge-beds as habitats for demersal fish on the Norwegian shelf. Deep Sea Research Part II: Topical Studies in Oceanography, 99, 122–133
DOI: 10.1016/j.dsr2.2013.07.021

Lynghammar, A. & Christiansen, J.S. & Griffiths, A.M. & Fevolden, S.E. & Hop, H. & Bakken, T. (2014)
DNA barcoding of the northern Northeast Atlantic skates (Chondrichthyes, Rajiformes), with remarks on the widely distributed starry ray. Zoologica Scripta, 43(5), 485–495

Lynghammar, A. & Christiansen, J.S. & Mecklenburg, C.W. & Karamushko, O.V. & Møller, P.R. & Gallucci, V.F. (2014)
Species richness and distribution of chondrichthyan fishes in the Arctic Ocean and adjacent seas. Biodiversity, 14(1), 57–66
DOI: 10.1080/14888386.2012.706198

Parin, N.V. & Evseenko, S.A. & Vasil'eva, E.D. (2014)
Fishes of Russian Seas: Annotated Catalogue. KMK Scientific Press, Moscow v. 53: 733 pp.

Dyldin, Y.V. (2015)
Annotated checklist of the sharks, batoids and chimaeras (Chondrichthyes: Elasmobranchii, Holocephali) from waters of Russia and adjacent areas. Publications of the Seto Marine Biological Laboratory, 43, 40–91

Musick, J.A. & Cotton, C.F. (2015)
Bathymetric Limits of Chondrichthyans in the Deep Sea: a Re-evaluation. Deep Sea Research Part II: Topical Studies in Oceanography, 115, 73–80
DOI: 10.1016/j.dsr2.2014.10.010i

Nieto, A. & Ralph, G.M. & Comeros-Raynal, M.T. & Kemp, J. & García Criado, M. & Allen, D.J. & Dulvy, N.K. & Walls, R.H.L. & Russell, B. & Pollard, D. & García, S. & Craig, M. & Collette, B.B. & Pollom, R. & Biscoito, M. & Labbish Chao, N. & Abella, A. & Afonso, P. & Álvarez, H. & Carpenter, K.E. & Clò, S. & Cook, R. & Costa, M.J. & Delgado, J. & Dureuil, M. & Ellis, J.R. & Farrell, E.D. & Fernandes, P. & Florin, A-B. & Fordham, S. & Fowler, S. & Gil de Sola, L. & Gil Herrera, J. & Goodpaster, A. & Harvey, M. & Heessen, H. & Herler, J. & Jung, A. & Karmovskaya, E. & Keskin, C. & Knudsen, S.W. & Kobyliansky, S. & Kovačić, M. & Lawson, J.M. & Lorance, P. & Mccully Phillips, S. & Munroe, T. & Nedreaas, K. & Nielsen, J. & Papaconstantinou, C. & Polidoro, B. & Pollock, C.M. & Rijnsdorp, A.D. & Sayer, C. & Scott, J. & Serena, F. & Smith-Vaniz, W.F. & Soldo, A. & Stump, E. & Williams, J.T. (2015)
European Red List of Marine Fishes. Luxembourg: Publications Office of the European Union.
DOI: 10.2779/082723

Last, P.R. & Séret, B. & Stehmann, M.F.W. & Weigmann, S. (2016)
Skates, Family Rajidae. In Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W & Naylor, G.J.P(Eds.) Rays of the World. CSIRO Publishing, Melbourne: 204–363

Last, P.R. & Weigmann, S. & Yang, L. (2016)
Changes to the nomenclature of the skates (Chondrichthyes: Rajiformes). In Rays of the World: Supplementary information(Last, P. R. & Yearsley, G. K., eds), CSIRO Special Publication: 11–34

Thomsen, P.F. & Møller, P.R. & Sigsgaard, E.E. & Knudsen, S.W. & Jørgensen, O.A. & Willerslev, E. (2016)
Environmental DNA from Seawater Samples Correlate with Trawl Catches of Subarctic, Deepwater Fishes. PLoS ONE, 11(11), Article e0165252
DOI: 10.1371/journal.pone.0165252

Weigmann, S. (2016)
Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. Journal of Fish Biology, 88(3), 837–1037
DOI: 10.1111/jfb.12874

Parzanini, C. & Parrish, C.C. & Hamel, J.F. & Mercier, A. (2017)
Trophic ecology of a deep-sea fish assemblage in the Northwest Atlantic. Marine Biology, 164(10), Article 206
DOI: 10.1007/s00227-017-3236-4

Barbini, S.A. & Sabadin, D.E. & Lucifora, L.O. (2018)
Comparative analysis of feeding habits and dietary niche breadth in skates: the importance of body size, snout length, and depth. Reviews in Fish Biology and Fisheries, 28(3), 625–636
DOI: 10.1007/s11160-018-9522-5

Moreira, R.A. & de Carvalho, M.R. (2018)
Morphology of the clasper musculature in rays (Chondrichthyes; Elasmobranchii: Batoidea), with comments on their phylogenetic interrelationships. Journal of Morphology, 279(12), 1827–1839
DOI: 10.1002/jmor.20904

Almeida, A.J. & Biscoito, M. (2019)
Keys to the fishes of the Eastern Atlantic Ocean, Mediterranean Sea and Black Sea. I – Myxini; Petromyzontida; Chondrichthyes Boletim do Museu de História Natural do Funchal, Suppl. 15, 1–195

Carneiro, M. & Martins, R. & Reiner, F. & Batista, I. (2019)
Ichthyofauna of Portugal: Taxonomic diversity, common and scientific names of marine fishes Vol. 1 + 2 [Ictiofauna de Portugal: Diversidade taxonómica, nomes comuns e nomes científicos dos peixes marinhos]. Instituto Português do Mar e da Atmosfera, I.P., Lisboa – Portugal, vol 1(pp. 376), vol. 2(154 pp.)

Barbini, S.A. & Lucifora, L.O. & Sabadin, D.E. & Figueroa, D.E. (2020)
Ecological specialization is associated with high conservation concern in skates (Chondrichthyes, Rajiformes). Animal Conservation, 23(2), 222–228
DOI: 10.1111/acv.12531

Ebert, D.A. & Dando, M. (2020)
Field Guide to Sharks, Rays & Chimaeras of Europe and the Mediterranean. Princeton University Press, Woodstock, ISBN: 9780691205984

Guinot, G. & Cavin, L. (2020)
Distinct Responses of Elasmobranchs and Ray-Finned Fishes to Long-Term Global Change. Frontiers in Ecololgy and Evolution, 7, Article 513
DOI: 10.3389/fevo.2019.00513

Villalobos-Segura, E. & Underwood, C.J. (2020)
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147

Wannell, G.J. & Griffiths, A.M. & Spinou, A. & Batista, R. & Mendonca, M.B. & Wosiacki, W.B. & Fraser, B. & Wintner, S. & Papadopoulos, A.I. & Krey, G. & Gubili, C. (2020)
A new minibarcode assay to facilitate species identification from processed, degraded or historic ray (batoidea) samples. Conservation Genetics Resources, 12, 659–668
DOI: 10.1007/s12686-020-01158-4

Barone M. & Friedman K. (2021)
Better data collection in shark fisheries – Learning from practice. FAO Fisheries and Aquaculture Circular, 1227, 1-80

Benzik, A.N. & Chetyrkin, A.A. (2023)
Diet Composition of Skates of the Barents Sea in 2004–2021. Journal of Ichthyology, 62(7), 1343–1351
DOI: 10.1134/S0032945222070025

Dolgov, A.V. & Prozorkevich, D.V. (2023)
Status of Skate Populations in the Barents Sea in the Recent Warm Period. Journal of Ichthyology, 62(7), 1312–1331
DOI: 10.1134/s0032945222060078

Leifsdottir, R.R. & Campana, S.E. (2023)
Species independence of eye lens dimensions in teleosts and elasmobranchs. Plos One, 18(6), Article e0286388
DOI: 10.1371/journal.pone.0286388

Schiønning, M.K. & Kroner1, A.-M. & Carl, H. & Møller, P.R. & Mildenberger, T.K. (2024)
En guide til hajer og rokker i danske og tilstødende farvande [A guide to sharks and skates in Danish and adjacent waters]. DTU Aqua-rapport nr. 453-2024
DOI: 10.11581/DTU.00000324